Shou wu chih is claimed by the manufacturers, without evidence from any scientific studies, to increase energy levels, tone, warm, and invigorate the blood, nourish the liver and kidneys, benefit the eyes, and
turn gray hair black. Other claims are that regular use may strengthen bones or tendons, or improve sleep. Shou wu chih is sold as a liquid in glass bottles. It is recommended by the manufacturers to be consumed by adding between one and three tablespoons to a cup of hot water, tea, or soup. ==Production and export==